277 results about "Green development" patented technology

The invention provides a phosphor-rich graphene flame-retardant agent with a structural formula shown in the description. The invention also provides a preparation method of the phosphor-rich graphene flame-retardant agent. The preparation method is characterized in that graphene oxide is used as a basic raw material, reactive groups at both ends of a silane coupler containing a silicon carbon layer improving agent are fully utilized, one end of the silane coupler is connected with acid source components, such as CEPPA (carboxyethyl phenyl phosphinic acid), DOPO or derivatives, and the other end of the silane coupler is connected with the graphene oxide, so as to obtain a macromolecular flame retardant integrating a physical carbon layer, an acid source and the carbon layer improving agent. The phosphor-rich graphene flame-retardant agent has the advantages that the flame-retardant efficiency is high, the polarity is low, the moisture absorbing property is little, and the mechanical property of the material can be well maintained; by not containing halogen, the flame-retardant agent is friendly to the human body and environment, and meets the green development direction of future flame-retardant agents.

The invention discloses a railway photovoltaic energy storing system and control method for regenerative braking energy recovery. Real-time online detection and processing are carried out on all kindsof running data of a photovoltaic side, traction side and energy storing side, a comprehensive judgement is carried out on running conditions based on a calculation result, control schemes under multiple scenes are selected through a judging result, an energy storing unit is taken as an energy transferring station, the coordinated control of a back-to-back converter, photovoltaic power generationunit and energy storing unit is achieved, and the electric energy elective exchange under the multiple scenes is completed. The system and method are conductive for photovoltaic power energy nearby consumption and railway system green development, can effectively recover the regenerative braking energy of haulage motors and the photovoltaic power energy which cannot be consumed, increases systemeconomic benefits, stabilizes photovoltaic side output and power energy fluctuation of the traction side under the regenerative braking conditions, and compensates for negative sequence functions of atraction power supply system.

The invention provides a method for preparing composite hydrogel through modifying bamboo shoot leftovers and an application of the composite hydrogel. An adsorption material is prepared by the steps of extracting cellulose from the bamboo shoot leftovers, then modifying by sodium chloroacetate, carrying out epoxy chloropropane cross-linking, followed by carrying out inverse suspension polymerization, and finally carrying out freeze drying. The prepared hydrogel beads are used as a bio-adsorbent, methylene blue is used as a dye model molecule, an adsorption effect on methylene blue is studied, and a theoretical foundation is laid for adsorption and sustained release of the hydrogel. The novel composite hydrogel prepared by utilizing the bamboo shoot processing waste leftovers is rich in raw material sources and low in cost, can achieve waste utilization, and promotes recycling economy; and the prepared hydrogel can be applied to adsorption of dye wastewater and adsorption and sustained release of a model drug, reduces pollution of bamboo shoot leftover arbitrarily discarding on the environment, and can play a certain role in promoting green development of ecological resources.

The present invention relates to a method for the production of stable humus- and nutrient-rich and water-storing soil substrates with properties of anthropogenic soil types (Terra Preta) in which pyrogenic carbon, organic biomass, and / or natural mineral materials are used as initial materials in a fermentation process. The soil produced or treated according to the invention leads to a sustainably high soil yield such that mineral fertilizers are no longer needed for agricultural use. Moreover, the soil is suitable for use as a soil substitute, for use as a soil supplement, for greening developments, for preventing erosion, for improving regional water supplies, for preventing floods, for preventing climate change, for reducing carbon dioxide content in the atmosphere, for waste water cleaning and treatment, for exhaust air cleaning and building air purification, for creating material flow cycles from biogenic waste and / or waste water in order to develop and utilize land use and development systems.

The invention relates to a preparation method and application method of a hydrated calcium silicate seed crystal. The materials for preparing the hydrated calcium silicate seed crystal comprise a calcium material, a silicon material, deionized water, a dispersant, anhydrous ethanol and sodium hydroxide. The adopted calcium material is calcium oxide, the adopted silicon material is one of sodium silicate and diatomite, and the adopted dispersant is a poly-carboxylic acid high molecular polymer. The controlled factors comprise the ratio of calcium to silicon, the ratio of water to solid, the dosage of the dispersant, the reaction temperature, the reaction pressure and the reaction time. The product prepared by the method provided by the invention is suitable for a construction engineering adopting mixed material cement as a cementitious system, and has an obvious effect of promoting the development of the early strength of a mixed material cement base material, so that the application scope of the mixed material cement is expanded, the dilemma of solid waste emission is relieved, the cement production cost is reduced, the emissions of wastes during cement production are reduced, and the product is beneficial to low-carbonization and greening development of cement, and has good environmental protection benefits and social and economic benefits.

The invention discloses a method for quickly desalting dredgerfill by using desulfurization gypsum (DSG). The method comprises that: when the water content of the dredgerfill reaches about 10 percent,adding desulfurization gypsum which is a product of the flue gas desulfurization of a coal fired power plant in 30 to 40 centimeter soil body in an amount which is 5 to 10 percent of the mass of soil, and fully mixing the desulfurization gypsum and the dredgerfill; paving a spray-insulating layer in an required depth of 1.0 to 1.2 meters; flooding for salt-leaching, wherein the amount of the flooding water is 1.0 to 1.2m<3> / m<2>, and the flooding is performed fractionally; and discharging leached salt and reducing salt till a standard for planting soil is met. The method realizes the in-situutilization and direct greening of the dredgerfill, solves the problem of the tense situation of soil and promotes the greening development of dredgerfill areas. The main ingredient of a calcium conditioner for increasing the breathability and loading capacity of the dredgerfill, namely the desulfurization gypsum which is the product of the flue gas desulfurization of the coal fired power plant, is CaSO4.2H2O. After being mixed with the desulfurization gypsum, the dredgerfill is improved in mechanical component and water and air permeability, so the dredgerfill can be quickly dewatered and desalted, and the secondary basification in the desalting process is inhibited.

The invention discloses a waterproof outdoor communication cabinet with a high-efficiency heat dissipation and ventilation effect in the technical field of outdoor communication cabinet, At the top ofthe top cover, a generator is installed through a bracket, A rotary blade is uniformly installed on the outer wall of the circumference of the rotary table, A lower part of the screw extends below the support plate and is mounted with a heat dissipation fan, At the top of the left and right side of the support plate, heat dissipation holes are arranged on the outer walls of the left and right sides of the cabinet body, At the top of the inn cavity on the left and right sides of the cabinet body, two group of disturbing fans are symmetrically arranged, the invention can convert natural energyinto electric energy, In accordance with the green development concept advocated by the state, the wind speed generated by the rotation of the heat dissipation fan is convenient to initially improve the air flow in the cabinet interior cavity, and the turbulent fan rotates under the influence of the wind to further improve the air mobility in the cabinet. The S-shaped heat dissipation hole cooperates with the rain shield plate to effectively prevent the external water droplets from entering the cabinet interior.

The invention discloses a new energy supply system used for run-through type traction power supply and a control method. The control method comprises the steps of determining an application area of anew energy supply system, and performing load prediction according to an electrified railway running chart of the application area and a traction load power curve in a normal working condition to obtain traction load data; obtaining a new energy daily output curve and a traction load curve according to the new energy resource state of the application area; by performing matching analysis to determine the optimal installed capacity of the new energy supply system when a constant condition is satisfied; and by combination of the planning condition of the application area, performing selection ofthe optimization operation control strategy of the new energy supply system in multiple scenarios. By virtue of the control method, new energy nearby consumption and green development of the railwaysystem can be facilitated, so that recycling of energy of a regenerative brake part can be realized effectively, the related electric energy quality problem can be avoided to bring extra economic benefits, and the basic electricity cost of the traction side can be lowered by performing peak cutting of the traction load.

The invention relates to the technical field of aerogel materials and provides a preparation method of a hydrophobic and oleophylic cellulose based aerogel in order to solve the problems of poor hydrophobicity, unreusability and low utilization rate of convectional oleophylic materials. The preparation method comprises the following steps: (1) adding of a crosslinking agent to an aqueous solutionof cellulose nanofibers, and ultrasonic dispersion; (2) pre-freezing treatment, and freeze-drying for obtaining an aerogel; and (3) hydrophobization treatment, and drying for obtaining the hydrophobicand oleophylic cellulose based aerogel. The bio-based cellulose nanofibers are used as an adsorbent main body, and have the advantages of wide sources, biodegradability, harmlessness to the environment, and conforming to the green development concept; the method adopting immersion-type hydrophobic treatment is simple, and is easy to operate; and the obtained cellulose based aerogel has the advantages of good hydrophobic and oleophylic performances, reusability and high resource utilization rate.

The invention relates to a plasma protein concentrating and drying technology, in particular to a method for preparing pig plasma protein powder with low ash content. In the invention, waste, namely pig blood left after pigs are killed is used as a raw material, and novel plasma protein powder is prepared by centrifugal separation, ultrafiltration concentration and spray drying technologies. The plasma protein powder prepared by using the method has low ash content, low volatile basic nitrogen content, high immune globulin content, high digestion rate, good solubility, good palatability, highsafety, balance nutrients and remarkable effects for promoting weaned pigs to grow, and can be used as a supplement source of feed protein. Through the effective utilization on the pig blood, not only the waste is turned into a valuable thing and benefits are brought to the society, but also the environments can be protected and the current green development tendency is met.

The invention discloses a temperature-sensitive and salt-sensitive copolymer gel. The temperature-sensitive and salt-sensitive copolymer gel is prepared from the following raw materials of acrylamide,functional monomers and starch through crosslinking and polymerizing. The temperature-sensitive and salt-sensitive copolymer gel is prepared by the following steps of (1) adding the starch into water, stirring, and pasting to the complete transparent state in a 75-DEG C constant-temperature water bath pot, so as to obtain a starch water solution; (2) adding the acrylamide and the functional monomers into the starch water solution, so as to obtain a first reaction solution; (3) adding a crosslinking agent and a free radical initiator into the first reaction solution, uniformly stirring, sealing a reaction container, and reacting for 24 to 36h at the temperature of 60 to 70 DEG C, so as to obtain a crude gel; (4) adding the crude gel into pure water, soaking and stirring for 12h, and drying, so as to obtain the temperature-sensitive and salt-sensitive copolymer gel. The synthesized temperature-sensitive and salt-sensitive copolymer gel has the characteristics that the temperature-sensitive and salt-sensitive properties with high expansion rate at high temperature and high salt condition are realized, and the like; by using the starch as a substrate for grafting and copolymerizing, the degradability of the gel is realized; the damage to stratum is little, the environment-friendly effect is realized, and the modern green development value is met.

The invention provides a crop organic fertilizer and a preparation method thereof and especially relates to an environment friendly and high-efficiency organic fertilizer prepared by the use of biogas residue, biogas slurry and straw. The organic fertilizer has an obvious effect of improving soil hardening and salinization. The invention has the following beneficial effects: 1, by the use of efficient complex microbial starter cultures which are beneficial to soil, biogas residue, biogas slurry and straw can be fermented within a short period of time to form an organic fertilizer with high fertilizer efficiency; 2, the formula of the organic fertilizer is scientific and reasonable, has strong pertinence and high content of organic matter, and can promote increase of crop yield and enhance quality of agricultural products; 3, the organic fertilizer produced by the invention can improve soil structure, promote formation of granular structure, raise soil fertility, adjust pH value of soil and boost fertilizer maintenance and water retention capacity of soil; and 4, agricultural wastes are fully utilized, the problem of environmental pollution caused by agricultural waste is solved, cyclic utilization of waste resources is realized, and the organic fertilizer is in accordance with the idea of national green development and is beneficial to human.

The invention discloses an energy-saving and emission-reducing hydrogen gas classified injection method for sintering. According to the inherent heat distribution difference of a sintering material layer, the material layer is divided into a high heat supplementing area (1250 DEG C), a medium heat supplementing area (1250-1300 DEG C) and a low heat supplementing area (1300 DEG C). According to thedifference of heat requirements in different areas of the sintering material layer, gas fuel is supplemented, uniform-heating homogeneous sintering can be easily realized, the sinter yield and quality index are greatly increased, the consumption of clean gas fuel for replacing solid fuel is reduced, the fuel utilization rate is increased, the emission amount of COx, SOx and NOx is reduced, the application and popularization prospects are broad, and the green development of the iron and steel industry is facilitated.

The invention discloses a method for preparing (R)-[3,5-bi(trifluoromethyl) phenyl]ethanol in a reaction system containing ionic liquid. The method comprises the following steps: with wet mycelium obtained by cultivation of trichoderma asperellum ZJPH0810 as a catalyst and 3,5-bi(trifluoromethyl) hypnone as a substrate, reacting for 6-50 hours under the conditions of 25-45 DEG C and 100-300r / min inside the reaction system composed of amino acid ionic liquid shown in a formula (I) and a phosphate buffer of which the pH value is 5.5-8.0; and separating and purifying the reaction liquid to obtain the product (R)-[3,5-bi(trifluoromethyl) phenyl]ethanol. The amino acid ionic liquid disclosed by the invention has the function of facilitating coenzyme regeneration, and is low in toxicity, green and environment-friendly, renewable and biodegradable; the reaction system containing the ionic liquid is applied to biological catalytic reaction, so that the method is friendly to the environment, and accords with the green development strategy, and the defects that the traditional ionic liquid is poor in biodegradability, nonrenewable and the like can be overcome.

A CO2-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO2, wherein CO2 is liquid and / or supercritical CO2. The CO2-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO2-sensitive fracturing and displacement fluid exerts the “one-agent multi-purpose” function of sand carrying, CO2 energization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.

The invention discloses a method of exploiting shallow massive type-I hydrate system based on warm sea water / gravel huff-puff exchange. The method herein includes: (1) for a shallow type-I hydrate system reservoir with massive hydrates, drilling a main borehole that runs through a hydrate layer and a free gas layer, and perforating the free gas layer to reduce exploiting underlying gas; (2) drilling a main wheel and branch holes in the hydrate reservoir to increase the decomposition surface area for the massive hydrates, and performing the combination exploiting technique of surface sew waterhuff-puff process and fluid extraction depressurizing process so that the massive hydrates decompose gradually; (3) charging gravel sands of certain particle size to a formation in intermittent mannerto continuously fill formation deficient spaces caused by the decomposition of the massive hydrates so as to maintain formation stability and improve near-well-bore permeability, thereby promoting effective decomposition of the hydrates; executing the cycle so as to safely and continuously exploit the shallow massive hydrates. Continuous large-scale exploiting of natural gas hydrates is achieved,stable seabed environment and ecological system are maintained, and the green development concept is embodied.

The invention discloses a processing method of a novel light energy-saving environmental-protection board, belonging to the field of processing professional technology of building wall body material; the basic technical proposal is that: the novel light energy-saving environmental-protection board is manufactured by the waste polystyrene foam, industrial production waste coal cinder or coal ash, building-removal waste residue, industrial production waste desulfuration gypsum, low-alkali sulphate aluminium cement, special chemical additive and water by weight parts, wherein the special chemical additive is prepared by radiating polyvinyl alcohol, polyacrylic acid, methylcellulose, lignin and boric acid which have a certain weight parts by Co-gamma rays; compared with the traditional wall body material, the novel composite molding board has the advantages of low cost, temperature insulation, energy saving, high-intensity shock resistance, sound insulation, moisture proofing, durability, light weight, simple manufacturing process, convenient construction, and being capable of fastening hangers, is completely accordance to the national green development requirements of energy saving, environment protection and waste utilization, therefore, the processing method of the novel light energy-saving environmental-protection board is an ideal sustainable development green wall body material.

The invention discloses a preparation method for boehmite nanocrystal. The preparation method comprises the following steps: S1: adding aluminium hydroxide powder into water to obtain a first mixed system, wherein the mass ratio of the aluminium hydroxide powder to the water is (0.2:1)-(0.8:1) in the first mixed system; S2: regulating the pH (Potential of Hydrogen) value of the first mixed system to 6-10, and obtaining a second mixed system; S3: carrying out hydrothermal reaction on the second mixed system at the temperature which is not lower than 170 DEG C for 7-10h to obtain a third mixed system; S4: carrying out cooling and solid-liquid separation on the third mixed system, wherein a solid phase is washed and dried to obtain the boehmite nanocrystal. The preparation method disclosed by the invention has the advantages of simpleness in operation, moderate condition, low cost and environment protection and conforms to a green development requirement, and no abundant acid-base wastes are generated. In addition, the obtained boehmite nanocrystal has the advantages of good crystallinity, controllable morphology, good dispersibility, high purity and the like.

The invention relates to city greening development, in particular to an ecological roof greening structure and a construction method therefor. The ecological roof greening structure comprises a structure layer (1), a heat insulation layer (2), an isolation layer (3), a sloping layer (4), a leveling layer (5), a waterproof layer (6), an isolation layer (7), a protective layer (8), a root blocking layer (9), a water guide and drainage layer (10), a filter layer (11), a light soil layer (12), a soil fixation layer (13) and a greening vegetation layer (14) in sequence from top to bottom. The greening vegetation layer (14) can be used for planting or artificially planting one or more of orychophragmus violaceus, scabiosa tschiliensis, artemisia argyrophylla, radix liriopes spicatae, euonymus fortunei var.radicans and Chinese ilex. The ecological roof greening structure has the benefits of simple structure and capabilities of beautifying the environment, purifying air, improving local microclimate and restricting sand dust and hazy weather.

The invention relates to an internet-of-things-based dangerous source monitoring system and an implementation method thereof. The system comprises a dangerous source information acquisition system, adatabase system, an MQTT proxy server and a query system, and the dangerous source information acquisition system is connected with the database system and the MQTT proxy server, the MQTT proxy serveris connected with the query system; the dangerous source information acquisition system acquires dangerous source data and sends the dangerous source data to the database system and the MQTT proxy server, the database system stores the dangerous source data into a database through the data server, the MQTT proxy server sends the received dangerous source data to the query system, the query systemreceives and displays the dangerous source data, and therefore the real-time monitoring function and the early warning function of the dangerous source are achieved. The real-time monitoring and early warning function for the dangerous source in the chemical park is achieved, the application range is wide, the system can be accessed and operated at any time and anywhere, can timely give feedback,and is accordant with the concept of national sustainable green development.

In the underground comprehensive pipe rack construction process, cement-mixed soil is put into precast I-shaped piles which are internally provided with embedded parts, and then the precast I-shaped piles are used for forming an enclosure wall; and the embedded parts of the I-shaped piles are in rebar connection with a pipe rack bottom plate. When the pipe rack bottom pack is poured, outer liningwall rebars are pre-embedded, and specified guide grooves are reserved in the pipe rack bottom plate to be used for being connected with precast concrete plates; the precast concrete plates which arewell installed serve as a template for an outer lining wall and later-poured tope plate site-cast concrete, and then the enclosure piles, supporting beams and the pipe rack structure are connected into a whole; and therefore the stiffness of the pipe rack structure can be significantly strengthened, and the settlement and anti-floating problems of the pipe rack structure are solved. Compared witha traditional pipe rack construction process, according to the construction method, the constriction procedures can be simplified, the construction progress can be accelerated, the construction cost can be reduced, the influence on the environment is small, and the construction method accords with the state-sponsored low-carbon, environmental-protection and economical green development strategies.

The invention discloses a crawler for non-excavation repair of a pipeline. The main points of the technical scheme are that the crawler for the non-excavation repair of the pipeline comprises a main body; a mounting frame is arranged at the first end of the main body; a camera device is arranged on the mounting frame; a storage cavity is also formed in the main body; the storage cavity is filled with a pipeline repair agent; the storage cavity is connected with a pipeline pump through the pipeline; a spraying head is also arranged on the mounting frame; the spraying head is connected with the pipeline pump through a guide pipe; therefore, an image in the pipeline is shot through the camera device; when a crack in the pipeline is found, the pipeline pump is controlled to start; the pipeline pump pumps the pipeline repair agent in the storage cavity; the pipeline repair agent is pressurized and is sprayed out from the spraying head under the action of the pipeline pump so as to be sprayed on the crack to achieve the purpose of repairing the crack. Compared with a conventional crawler, the crawler for the non-excavation repair of the pipeline is more energy-saving, environment-friendly, low-carbon and resource-saving, and contributes to green development.

The invention discloses an underground pipe gallery wheel type logistics vehicle system. The system comprises a logistics vehicle and a logistics vehicle rail, wherein a sensing board is arranged on the logistics vehicle rail, and a vehicle-mounted motor stator winding is arranged on the logistics vehicle; a traveling wave magnetic field is generated after the vehicle-mounted motor stator windingis electrified, the traveling wave magnetic field can excite the sensing board to generate an eddy current magnetic field, and the eddy current magnetic field interacts with the traveling wave magnetic field so as to realize propelling and braking of the logistics vehicle. In the underground pipe gallery wheel type logistics vehicle system, the power of the logistics vehicle comes from a current receiving rail connected with a power grid, and a power source can be used immediately after being obtained; supporting and guiding of the logistics vehicle are achieved through vehicle body supportingwheels and guide wheels, and the system has the advantages of being environmentally friendly, convenient to maintain, convenient to control and the like and is suitable for intelligent and green development directions of future logistics.

The present invention relates to a method for the production of stable humus- and nutrient-rich and water-storing soil substrates with properties of anthropogenic soil types (Terra Preta) in which pyrogenic carbon, organic biomass, and / or natural mineral materials are used as initial materials in a fermentation process. The soil produced or treated according to the invention leads to a sustainably high soil yield such that mineral fertilizers are no longer needed for agricultural use. Moreover, the soil is suitable for use as a soil substitute, for use as a soil supplement, for greening developments, for preventing erosion, for improving regional water supplies, for preventing floods, for preventing climate change, for reducing carbon dioxide content in the atmosphere, for waste water cleaning and treatment, for exhaust air cleaning and building air purification, for creating material flow cycles from biogenic waste and / or waste water in order to develop and utilize land use and development systems.

The invention discloses a method for improving the fermentation yield of rifamycin SV. In the process of fermentation culture, oxalate with the final concentration of 0.2-0.5g / L and soybean oil with the final concentration of 2-5mL / L are sterilely added into a fermentation tank the fermentation culture cycle of amycolatopsis mediterranei of which is 60-80 hours. The titer of the rifamycin SV is increased by 3.0% on average, the titer is increased by 5.4% on average in case of one billion tanks, carbohydrate supplementation is decreased by 17% and the raw material cost of every tank is saved by***. The supplementary materials in the method are all agricultural and industrial commodities with high affordability. In addition, the operational process is simple and the controllability is strong, thus the method is applicable to large-scale fermentation production, the production increase effect is stable and the method conforms to the green development requirement of energy conservation in fermentation industry by the state.

The invention provides a simple and environmental-friendly fleece (wool) washing method which does not affect human health and fleece quality. The method comprises the following steps: (1) wetting and washing raw fleece (wool) with clear water preliminarily in a first tank; (2) washing the fleece (wool) carefully in a second tank with water which is equal to or lower than 30 DEG C and mixed with lower-temperature detergent; (3) washing the fleece (wool) again in a third tank with water which is equal to or lower than 30 DEG C and mixed with lower-temperature detergent; (4) rinsing the fleece (wool) for the first time with clear water at normal temperature in a fourth tank; and (5) rinsing the fleece (wool) for the second time with clear water at normal temperature in a fifth tank. Since a low-temperature washing mode and green detergent harmless to a human body and friendly to the environment are adopted, energy consumption and the emission of carbon dioxide can be reduced in a production process, the protection to fibers are good, the handfeel of fibers does not need to be improved by the use of monogen, and production efficiency can be improved; since the low-temperature detergent is a nonionic product and no positive charge or negative charge exists in working liquid, sodium tripolyphosphate or sodium carbonate and other dielectric media are not required. The implementation of the invention has an active boosting effect on the improvement of the overall electronic benefit of the fleece and wool processing industry and the green development of the textile industry in the future.

The invention relates to the field of ecological protection, and in particular relates to a computer modeling method of green development ecological safety evaluation index in a biodiversity protection priority area. The method comprises the following steps of: (1) selecting indexes; (2) carrying out nondimensionalization on the indexes; (3) carrying out analytic hierarchy process; and (4) computing the comprehensive safety index.

The invention discloses an environment-friendly vegetable oil type ink and a preparation process thereof. The environment-friendly vegetable oil type ink mainly comprises the following raw materials by weight: 20-35 parts of a coloring agent, 3-5 parts of auxiliary agents, 30-48 parts of rosin-modified phenolic resin and 20-30 parts of a solvent, wherein the auxiliary agents are mainly composed of1-5 parts of an anti-friction agent, 0.5-2 parts of a drying agent, 0.5-3 parts of an anti-drying agent and 3.5-4.5 parts of other auxiliary agents, and the solvent is mainly composed of soybean oil,linseed oil and tung oil. According to the ink in the invention, resin with low solubility and medium and low viscosity is selected and used, and vegetable oil esters having performance similar to the performance of mineral oil are elected and used, so the ink of the invention overcomes the problem of slow fixation speed, poor printability, too hard ink properties, great colloidality and too large yield value of conventional ink, has rich color and good effect, and accords with the development trend and the green development concept advocated at present.

The invention discloses a method for preparing an Au-cluster / carbon nanotube composite catalyst. The method has the advantages that (1) the prepared Au / CNT composite catalyst has high onset potential, cycling stability and durability, and greatly improves catalytic activity of cathodic reaction of fuel cells; (2) the catalyst is prepared through in-situ reduction of a multiwalled carbon nanotube and chloroauric acid, the preparation method is simple and direct under mild reaction conditions with no high temperature and high pressure required, thus the synthetic process is greatly simplified and production cost is decreased; and (3) according to the preparation process, water serves as solvent instead of poisonous harmful organic solvent, at the meantime the preparation process is conducted under room temperature, which is energy-saving and environmentally-friendly and highly fits to the idea of green development and the development requirement on new energies of the modern society, thus the Au-cluster / carbon nanotube composite catalyst has a good market prospect.

The invention relates to a preparation method of a high-gel-strength fish scale gelatin, which comprises the following step: performing ammonium sulfate salting-out on a fish scale gelatin, which is prepared from fish scale waste and used as an object, to prepare a high-gel-strength fish scale gelatin product. The preparation method provided by the invention has the following positive effects: 1, the fish scale waste is used as an initial raw material for gelatin preparation, thus realizing the high-value utilization of the resource, protecting the environment, realizing the sustainable green development, effectively reducing the gelatin production cost and reducing the gelatin import volume of China; 2, the fish scale gelatin is subjected to ammonium sulfate salting-out for the first time, thus preparing the high-gel-strength fish scale gelatin, reducing the consumption in the application process and further reducing the gelatin application cost; and 3, the method for preparing a high-gel-strength fish scale gelatin through ammonium sulfate salting-out can provide a practical and feasible basis for the preparation of a high-quality gelatin, thereby laying a foundation for the further study on the gelatin and making a little contribution for the quick development of the gelatin industry in China.